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Santarosaite

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Formula:
CuB2O4
Colour:
vivid blue
Lustre:
Vitreous
Specific Gravity:
3.96 (Calculated)
Crystal System:
Tetragonal
Name:
For the type locality, Santa Rosa Mine, Iquique, Chile
The natural analogue of copper metaborate.


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Classification of SantarosaiteHide

Approved
Approval Year:
2007
6.BD.05

6 : BORATES
B : Diborates
D : Tektodiborates with tetrahedra
24.5.5.

24 : ANHYDROUS BORATES
5 : Miscellaneous

Pronounciation of SantarosaiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of SantarosaiteHide

Vitreous
Colour:
vivid blue
Streak:
pale blue
Density:
3.96 g/cm3 (Calculated)

Chemical Properties of SantarosaiteHide

Formula:
CuB2O4
Common Impurities:
Pb,Ca

Crystallography of SantarosaiteHide

Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
I4 2d
Cell Parameters:
a = 11.517(8) Å, c = 5.632(6) Å
Ratio:
a:c = 1 : 0.489
Unit Cell V:
747.1 ų
Z:
12
Morphology:
globular aggregates of tiny leaf-like crystallites less than 1 micron thick.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.707 (100)
3.638 (47)
2.876 (17)
2.775 (35)
2.572 (26)
2.501 (26)
1.822 (21)
1.793 (20)

Type Occurrence of SantarosaiteHide

General Appearance of Type Material:
globules to 60 microns in size
Place of Conservation of Type Material:
Mineralogical Museum of the University of Hamburg, Germany
Associated Minerals at Type Locality:

Synonyms of SantarosaiteHide

Other Language Names for SantarosaiteHide

Simplified Chinese:硼铜石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Anhydrite1 photo of Santarosaite associated with Anhydrite on mindat.org.
Atacamite1 photo of Santarosaite associated with Atacamite on mindat.org.

Fluorescence of SantarosaiteHide

not observed

Other InformationHide

Notes:
not soluble in water, but in HCl
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for SantarosaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Schlüter, J., Pohl, D., Golla-Schindler, U. (2008): Santarosaite, CuB2O4, a new mineral with disordered structure from the Santa Rosa mine, Atacama desert, Chile. Neues Jahrbuch für Mineralogie - Abhandlungen, 185, 27-32.

Internet Links for SantarosaiteHide

Localities for SantarosaiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Chile (TL)
 
  • Tarapacá Region
    • Iquique Province
      • Santa Rosa-Huantajaya District
Schlüter, J., Pohl, D., Golla-Schindler, U. (2008): Santarosaite, CuB2O4, a new mineral with disordered structure from the Santa Rosa mine, Atacama desert, Chile. Neues Jahrbuch für Mineralogie - Abhandlungen, 185, 27-32.
Mineral and/or Locality  
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